State::ID TransitionFn::next_state(const AttributeMap& interaction, AttributeMap& global_state) const {
if (!script_fn_)
throw Util::MissingTransitionFnScriptError(id_);
stringstream function_name_ss;
function_name_ss << Util::kTransitionFnScriptFunctionName << id_;
return state_at(script_fn_->execute(function_name_ss.str(), interaction, global_state));
}
int nfa2dfa() {
char state[40][40];
int i = 0;
int n = 1;
char next[40];
int j;
strcpy(state[0], "0");
for (i = 0; i < n; i++) {
for (j = 0; j < NFA_symbols; j++) {
next_state(next, state[i], j);
DFAtab[i][j] = state_at(next, state, &n);
}
}
return n;
}
float history_rotateValue(history_t* past, U16 frame)
{
state_t* rotations = dict_lookup(past->states, "rotate");
if (rotations) //should always be true.
{
float angle = state_value(rotations, frame);
state_t* flags = dict_lookup(past->states, "flags");
U16 currentflags = state_value(flags, frame);
if (currentflags & IF_FIXED_ALIGNMENT)
{
flags = state_at(flags, frame);
if (frame == past->firstFrame)
frame++;
state_t *x, *y;
float dx, dy, pathAngle;
do
{
x = dict_lookup(past->states, "x");
dx = state_value(x, frame) - state_value(x, frame - 1);
y = dict_lookup(past->states, "y");
dy = state_value(y, frame) - state_value(y, frame - 1);
frame--;
}
while (dx == 0 && dy == 0 && frame > past->firstFrame);
if (frame == past->firstFrame)
pathAngle = 0;
else
pathAngle = getAngle(dx, dy) / M_PI * 180;
return angle + flags->params.instanceAngle + pathAngle - flags->params.pathAngle;
}
else
return angle;
}
syntaxerror("no history found to get a value for parameter rotate.\n");
return 0;
}
